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Spine Anatomy
The Last Lecture
| Question | Answer |
|---|---|
| What are the quiet inspiratory muscles? | Diaphragm, External intercostals |
| What are the forced(also called secondary/accessory) inspiratory muscles?(there are 7) | SCM, Scalenes, pec major minor, serratus anterior, serratus posterior superior, upper iliocostalis |
| What are the primary expiratory muscles? | internal intercostals |
| What are the secondary expiratory muscles?(6 of them) | Internal oblique, external oblique, rectus abdominus, lower iliocostalis, lower longissimus, serratus posterior inferior |
| How many pairs of thoracic spinal nerves are there? | 12 |
| What supplies innervation to the bones, joints, muscles, and skin of the posterior thorax? | DR |
| What form the intercostal nerves? | VR T1-T11 |
| What forms the subcostal nerve? | VR T12 |
| What connects the intercostal nerves to the sympathetic trunk? | Gray and White communicating rami |
| What is located in the intercostal grooves of the ribs and has collateral branches supply the intercostal muscles? | intercostal nerve |
| What splits into lateral and anterior cutaneous branches? | intercostal nerve |
| What gives rise to the posterior cutaneous branch? | intercostal nerve |
| What condition results form pathology of the intercostal nerves? | Herpes Zoster(shingles) |
| The posterior intercostal and subcostal arteries branch off of the _______. | Thoracic Aorta |
| The internal thoracic and superior intercostal are branches of which artery? | Subclavian artery |
| The superior and lateral thoracic are branches of which artery? | Axillary |
| The posterior intercostal branches off of the ______ and supply blood to the _________ muscles and ______. | thoracic aorta, intercostal, skin |
| The internal thoracic branches from the _________ artery and gives rise to the ________ _________ _________. | Subclavian, Anterior intercostal arteries |
| What kind of joint is the TMJ? | modified hinge synovial joint |
| What divides the TMJ into 2 separate compartments? | the articular disc |
| What 2 mvmts occur in the superior compartment of the TMJ? | protrusion and retrusion |
| What 2 mvmts occur in the inferior compartment of the TMJ? | elevation and depression |
| What ligament strengthens the TMJ laterally? | Temporomandibular ligament |
| What ligament runs from the styloid process to the angle of the mandible? | stylomandibular ligament |
| What ligament does not contribute significantly to the strength of the TMJ, but primarily limits protrusion? | Stylomandibular ligament |
| What ligament runs from the spine of the sphenoid to the medial surface (lingula) of the mandible? | sphenomandibular ligament |
| Primary passive support of the mandible is provided by which ligament? | sphenomandibular ligament |
| What are the muscles of mastication?(there are 4) | Masseter, Temporalis, Medial pterygoid, Lateral pterygoid |
Created by:
txst spr 2009
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